Knife River Corporation (KNF)
NYSE: KNF · Mining & Quarrying of Nonmetallic Minerals (No Fuels) · Bismarck, ND · filing with the SEC since 2022
Who runs Knife River Corporation
Officers and directors as they report to the SEC on Forms 3, 4 and 5, named as filedChief executive, as filed
Gray Brian R.
President & CEO. First filing May 2023, latest Mar 9, 2026, 1 filing in all.
Officers reporting now
8
of 14 people with a filing in the last fifteen months
Directors reporting now
6
19 people on the record since 2023
Officerssales are open-market, Oct 1, 2025 to Oct 1, 2026
| Name | Title as filed | First filing | Latest filing | Sales, 12 months |
|---|---|---|---|---|
| Rebstock Peggy S. | VP, CAO and Controller | May 2026 | May 21, 2026 | none |
| Gray Brian R. | President & CEO | May 2023 | Mar 9, 2026 | none |
| Hastings Trevor J | Vice President & COO | Jun 2023 | Mar 5, 2026 | none |
| Ring Nathan W | Vice President & CFO | May 2023 | Mar 5, 2026 | none |
| Kadrmas Marney L. | VP & Chief Accounting Officer | Jun 2023 | Mar 5, 2026 | none |
| Lachapelle Sarah L. | VP & Chief People Officer | Apr 2025 | Mar 5, 2026 | none |
| Liepitz Karl A | VP, Chief Legal Officer & Sec. | May 2023 | Mar 5, 2026 | none |
| Pladsen Glenn R. | VP & Chief Excellence Officer | Jun 2023 | Mar 5, 2026 | none |
Directorssales are open-market, Oct 1, 2025 to Oct 1, 2026
| Name | Role | First filing | Latest filing | Sales, 12 months |
|---|---|---|---|---|
| Fagg Karen B | director | Jun 2023 | Oct 1, 2026 | none |
| Carmona-Alvarez German | director | Jun 2023 | May 21, 2026 | none |
| Chiodo Patricia | director | Jun 2024 | May 21, 2026 | none |
| Hill Thomas W. | director | May 2024 | May 21, 2026 | none |
| Moss Patricia L | director | May 2023 | May 21, 2026 | none |
| Sandbrook William J | director | Jun 2023 | May 21, 2026 | none |
Earlier names on the record6, newest filing first
Christenson Nancy K. · officer · last filing Mar 2025Everist Thomas S · director · last filing Nov 2023Mdu Resources Group Inc · 10% owner · last filing Nov 2023Quade John F. · officer · last filing Jun 2023Goodin David L · officer · last filing May 2023Vollmer Jason L · director · last filing May 2023
A person is listed as reporting now after a filing in the last fifteen months. The record shows when someone last filed; it does not say why they stopped. Each name links to the filings on sec.gov.